62.12% is the change from 198 to 321
Calculation steps:
[( 321 - 198 ) ÷ 198] x 100 = 62.12%
Formula
Percentage change = [(321 - 198) / 198] x 100
Subtract the new number by the original number
321 - 198 = 123
123 ÷ 198 = 0.6212121212121212
0.6212121212121212 x 100 = 62.12%